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Finding the Fourth Proportional to 265,736,270.60, 398,604,405.90 and 255,532,603.40

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Solution

The fourth proportional to 265,736,270.60, 398,604,405.90 and 255,532,603.40 is: 383,298,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,736,270.60 : 398,604,405.90 = 255,532,603.40 : x
  2. Step 2: Convert to fraction form
    265,736,270.60/398,604,405.90 = 255,532,603.40/x
  3. Step 3: Cross multiply
    265,736,270.60x = 398,604,405.90 × 255,532,603.40
  4. Step 4: Simplify right side
    265,736,270.60x = 101,856,421,566,337,312
  5. Step 5: Solve for x
    x = 101,856,421,566,337,312/265,736,270.60
  6. Step 6: Final answer
    x = 383,298,905.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.